CSS property writing-mode allow elements to go vertical, but users cannot set the direction in which value changes. With this feature, we are allowing the form control elements meter, progress and range input type to have vertical writing mode and choose the form control's value direction. If direction is rtl, the value is rendered from bottom to top. If direction is ltr, the value is rendered from top to bottom. For Web compatibility, we plan to slowly rollout the change in 123 and enable in stable in 124.
While surveying developers, there are strong interests to be able to control the direction from which slider elements (such as range, meter and progress) update values. https://github.com/whatwg/html/issues/4177 https://github.com/whatwg/html/issues/8413